1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.directory.mavibot.btree;
21
22
23 import java.util.List;
24
25
26 /**
27 * The result of a delete operation, when the child has not been merged. It contains the
28 * reference to the modified page, and the removed element.
29 *
30 * @param <K> The type for the Key
31 * @param <V> The type for the stored value
32
33 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
34 */
35 /* No qualifier*/class RemoveResult<K, V> extends AbstractDeleteResult<K, V>
36 {
37 /**
38 * The default constructor for RemoveResult.
39 *
40 * @param modifiedPage The modified page
41 * @param removedElement The removed element (can be null if the key wasn't present in the tree)
42 */
43 public RemoveResult( Page<K, V> modifiedPage, Tuple<K, V> removedElement )
44 {
45 super( modifiedPage, removedElement );
46 }
47
48
49 /**
50 * A constructor for RemoveResult which takes a list of copied pages.
51 *
52 * @param copiedPages the list of copied pages
53 * @param modifiedPage The modified page
54 * @param removedElement The removed element (can be null if the key wasn't present in the tree)
55 */
56 public RemoveResult( List<Page<K, V>> copiedPages, Page<K, V> modifiedPage, Tuple<K, V> removedElement )
57 {
58 super( copiedPages, modifiedPage, removedElement );
59 }
60
61
62 /**
63 * @see Object#toString()
64 */
65 public String toString()
66 {
67 StringBuilder sb = new StringBuilder();
68
69 sb.append( "RemoveResult :" );
70 sb.append( "\n removed element = " ).append( getRemovedElement() );
71 sb.append( "\n modifiedPage = " ).append( getModifiedPage() );
72
73 return sb.toString();
74 }
75 }